diff options
Diffstat (limited to 'chromium/third_party/sqlite/patched/src/prepare.c')
-rw-r--r-- | chromium/third_party/sqlite/patched/src/prepare.c | 80 |
1 files changed, 36 insertions, 44 deletions
diff --git a/chromium/third_party/sqlite/patched/src/prepare.c b/chromium/third_party/sqlite/patched/src/prepare.c index 36f90f408bf..bdb9509caec 100644 --- a/chromium/third_party/sqlite/patched/src/prepare.c +++ b/chromium/third_party/sqlite/patched/src/prepare.c @@ -57,6 +57,18 @@ int sqlite3IndexHasDuplicateRootPage(Index *pIndex){ return 0; } +/* forward declaration */ +static int sqlite3Prepare( + sqlite3 *db, /* Database handle. */ + const char *zSql, /* UTF-8 encoded SQL statement. */ + int nBytes, /* Length of zSql in bytes. */ + u32 prepFlags, /* Zero or more SQLITE_PREPARE_* flags */ + Vdbe *pReprepare, /* VM being reprepared */ + sqlite3_stmt **ppStmt, /* OUT: A pointer to the prepared statement */ + const char **pzTail /* OUT: End of parsed string */ +); + + /* ** This is the callback routine for the code that initializes the ** database. See sqlite3Init() below for additional information. @@ -106,7 +118,8 @@ int sqlite3InitCallback(void *pInit, int argc, char **argv, char **NotUsed){ db->init.newTnum = sqlite3Atoi(argv[3]); db->init.orphanTrigger = 0; db->init.azInit = argv; - TESTONLY(rcp = ) sqlite3_prepare(db, argv[4], -1, &pStmt, 0); + pStmt = 0; + TESTONLY(rcp = ) sqlite3Prepare(db, argv[4], -1, 0, 0, &pStmt, 0); rc = db->errCode; assert( (rc&0xFF)==(rcp&0xFF) ); db->init.iDb = saved_iDb; @@ -527,6 +540,7 @@ void sqlite3ParserReset(Parse *pParse){ if( db ){ assert( db->lookaside.bDisable >= pParse->disableLookaside ); db->lookaside.bDisable -= pParse->disableLookaside; + db->lookaside.sz = db->lookaside.bDisable ? 0 : db->lookaside.szTrue; } pParse->disableLookaside = 0; } @@ -560,7 +574,7 @@ static int sqlite3Prepare( */ if( prepFlags & SQLITE_PREPARE_PERSISTENT ){ sParse.disableLookaside++; - db->lookaside.bDisable++; + DisableLookaside; } sParse.disableVtab = (prepFlags & SQLITE_PREPARE_NO_VTAB)!=0; @@ -587,16 +601,18 @@ static int sqlite3Prepare( ** but it does *not* override schema lock detection, so this all still ** works even if READ_UNCOMMITTED is set. */ - for(i=0; i<db->nDb; i++) { - Btree *pBt = db->aDb[i].pBt; - if( pBt ){ - assert( sqlite3BtreeHoldsMutex(pBt) ); - rc = sqlite3BtreeSchemaLocked(pBt); - if( rc ){ - const char *zDb = db->aDb[i].zDbSName; - sqlite3ErrorWithMsg(db, rc, "database schema is locked: %s", zDb); - testcase( db->flags & SQLITE_ReadUncommit ); - goto end_prepare; + if( !db->noSharedCache ){ + for(i=0; i<db->nDb; i++) { + Btree *pBt = db->aDb[i].pBt; + if( pBt ){ + assert( sqlite3BtreeHoldsMutex(pBt) ); + rc = sqlite3BtreeSchemaLocked(pBt); + if( rc ){ + const char *zDb = db->aDb[i].zDbSName; + sqlite3ErrorWithMsg(db, rc, "database schema is locked: %s", zDb); + testcase( db->flags & SQLITE_ReadUncommit ); + goto end_prepare; + } } } } @@ -627,48 +643,24 @@ static int sqlite3Prepare( } assert( 0==sParse.nQueryLoop ); - if( sParse.rc==SQLITE_DONE ) sParse.rc = SQLITE_OK; + if( sParse.rc==SQLITE_DONE ){ + sParse.rc = SQLITE_OK; + } if( sParse.checkSchema ){ schemaIsValid(&sParse); } - if( db->mallocFailed ){ - sParse.rc = SQLITE_NOMEM_BKPT; - } if( pzTail ){ *pzTail = sParse.zTail; } - rc = sParse.rc; - -#ifndef SQLITE_OMIT_EXPLAIN - /* Justification for the ALWAYS(): The only way for rc to be SQLITE_OK and - ** sParse.pVdbe to be NULL is if the input SQL is an empty string, but in - ** that case, sParse.explain will be false. */ - if( sParse.explain && rc==SQLITE_OK && ALWAYS(sParse.pVdbe) ){ - static const char * const azColName[] = { - "addr", "opcode", "p1", "p2", "p3", "p4", "p5", "comment", - "id", "parent", "notused", "detail" - }; - int iFirst, mx; - if( sParse.explain==2 ){ - sqlite3VdbeSetNumCols(sParse.pVdbe, 4); - iFirst = 8; - mx = 12; - }else{ - sqlite3VdbeSetNumCols(sParse.pVdbe, 8); - iFirst = 0; - mx = 8; - } - for(i=iFirst; i<mx; i++){ - sqlite3VdbeSetColName(sParse.pVdbe, i-iFirst, COLNAME_NAME, - azColName[i], SQLITE_STATIC); - } - } -#endif if( db->init.busy==0 ){ sqlite3VdbeSetSql(sParse.pVdbe, zSql, (int)(sParse.zTail-zSql), prepFlags); } - if( rc!=SQLITE_OK || db->mallocFailed ){ + if( db->mallocFailed ){ + sParse.rc = SQLITE_NOMEM_BKPT; + } + rc = sParse.rc; + if( rc!=SQLITE_OK ){ if( sParse.pVdbe ) sqlite3VdbeFinalize(sParse.pVdbe); assert(!(*ppStmt)); }else{ |